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/*
(C) Copyright Taiichi Yuasa and Masami Hagiya, 1984. All rights reserved.
*/
#ifdef DGUX
#include <stdio.h>
#endif
/*
fasl loader parameter definition
*/
#define FAS_HEADER_LEN 3 /* header word length */
#define FAS_HEADER_BLEN 6 /* header byte length */
#define FAS_DATA_LEN 7 /* data block length */
#define FAS_DATA_BLEN 14 /* data block byte length */
#define MAX_TITLE 32 /* title max length */
#define MAX_SYMBOL 32 /* symbol max length */
#define MAX_SYS_PART 7 /* max system partition no */
#define EX_RELOC 017 /* extended relocation */
#define BIT_RELOC 016 /* extended bit relocation */
/* Define the offsets of the various words in the FASL blocks. Certain
parts of different ob blocks are quite similar. This includes the
block header, the name descriptors and the relocation entries. These
are defined as follows: */
/* block header */
struct fas_hdr {
short hdr_typ; /* block type */
short hdr_num; /* block number */
short hdr_len; /* block length including header */
};
/* name descriptor */
struct fas_name {
short name_len; /* name length */
short name_ptr; /* byte offset */
};
/* standard symbol or dictionary entry */
struct fas_std {
short std_disp; /* displacement */
short std_reloc; /* relocation */
};
/* extended symbol entry */
struct fas_sym {
short sym_base; /* relocation base */
short sym_reloc; /* relocation */
long sym_disp; /* displacement */
};
/* extended dictionary entry */
struct fas_dict {
short dict_data; /* word offset */
short dict_reloc; /* relocation */
short dict_base; /* relocation base */
};
/* bit relocation entry */
struct fas_bit {
short bit_data; /* word offset */
short bit_reloc; /* relocation */
short bit_base; /* relocation base */
short bit_fields; /* bit field description */
};
/* data block */
struct fas_data {
short data_words; /* word count */
long data_repeat; /* repeat count */
short data_base; /* relocation base */
short data_reloc; /* relocation operation */
long data_disp; /* data displacement */
};
/* title block */
struct fas_titl {
short titl_rev; /* revision */
short titl_len; /* title length */
short titl_ptr; /* byte offset */
};
/* end block */
struct fas_end {
short end_base; /* relocation base */
short end_reloc; /* relocation */
long end_start; /* start address */
};
/* unlabelled common block */
struct fas_uncom {
long uncom_len; /* length */
short uncom_reloc; /* relocation */
};
/* external symbols block */
struct fas_ext {
short ext_num; /* number of symbols */
};
/* entry and local symbols block */
struct fas_ent {
short ent_count; /* number of entries */
};
/* entry descriptor */
struct fas_entd {
short entd_len; /* length */
short entd_ptr; /* name pointer */
short entd_base; /* base */
short entd_reloc; /* relocation */
long entd_disp; /* displacement */
};
/* partition difinition block */
struct fas_pat {
short pat_count; /* number of patitions */
};
/* partition descriptor */
struct fas_patd {
short patd_flag; /* various flags */
short patd_nlen; /* partition name length */
short patd_nptr; /* partition name pointer */
long patd_len; /* partition length */
};
/* revision block */
struct fas_rev {
short rev_lrev; /* link revision number */
short rev_count; /* number of revision descriptors */
};
/* revision descriptor */
struct fas_revd {
short revd_btyp; /* block type */
short revd_brev; /* block revision */
};
/* module revision block */
struct fas_mrev {
long mrev_rev; /* module revision */
};
/* filler block */
struct fas_fil {
short fil_data; /* data filied */
};
/* alignment block */
struct fas_aln {
short aln_base; /* relocation base */
short aln_power; /* alignment factor */
};
/*
partition table definition
*/
/*
define global variables for FASL loader
*/
struct part_table {
short part_no; /* partition number */
long part_len; /* partition length */
long part_addr; /* base address */
short part_align; /* alignment */
short part_global; /* global or local flag */
short part_symbol; /* partition or ext. symbol flag */
char part_name[MAX_SYMBOL + 1]; /* partition name */
};
/*
block type defnition
*/
enum block_types {
DATA_BLOCK = 0, /* data block */
TITL_BLOCK, /* title block */
END_BLOCK, /* end block */
UNCOM_BLOCK, /* unlabeled common */
EXT_BLOCK, /* external */
ENT_BLOCK, /* entry */
LOCAL_BLOCK, /* local entry, ignored */
LIBS_BLOCK, /* library start block, unexpected */
AIB_BLOCK, /* address infoamtion block, unexpected */
SYS1_BLOCK, /* reserved, unexpected */
TASK_BLOCK, /* unexpected */
SYS2_BLOCK, /* reserved, unexpected */
COMM_BLOCK, /* labeled common, unexpected */
SYS3_BLOCK, /* reserved, unexpected */
DEBS_BLOCK, /* debugger symbol, ignored */
DEBL_BLOCK, /* debugger line, ignored */
LTITL_BLOCK, /* line title, ignored */
LIBE_BLOCK, /* library end, unexpected */
SYS4_BLOCK, /* reserved, unexpected */
PAT_BLOCK, /* partition block */
SYS5_BLOCK, /* reserved, unexpected */
SYS6_BLOCK, /* reserved, unexpected */
REV_BLOCK, /* revision block */
FIL_BLOCK, /* filler block unexpected */
MREV_BLOCK, /* module revision block */
ALN_BLOCK /* allinment block */
};
/*
for easy reference
*/
typedef struct fas_hdr *FAS_HDR_P;
typedef struct fas_name *FAS_NAME_P;
typedef struct fas_std *FAS_STD_P;
typedef struct fas_sym *FAS_SYM_P;
typedef struct fas_dict *FAS_DICT_P;
typedef struct fas_bit *FAS_BIT_P;
typedef struct fas_data *FAS_DATA_P;
typedef struct fas_titl *FAS_TITL_P;
typedef struct fas_end *FAS_END_P;
typedef struct fas_uncom *FAS_UNCOM_P;
typedef struct fas_ext *FAS_EXT_P;
typedef struct fas_ent *FAS_ENT_P;
typedef struct fas_entd *FAS_ENTD_P;
typedef struct fas_pat *FAS_PAT_P;
typedef struct fas_patd *FAS_PATD_P;
typedef struct fas_rev *FAS_REV_P;
typedef struct fas_revd *FAS_REVD_P;
typedef struct fas_mrev *FAS_MREV_P;
typedef struct fas_fil *FAS_FIL_P;
typedef struct fas_aln *FAS_ALN_P;
typedef struct part_table *PART_TABLE_P;
/*
parameter definition
*/
#define TRUE 1
#define FALSE 0
#define FAS_BUFF_LEN 2048
#define FAS_MAP_SIZE 1024
#define R_MASK 0177400 /* mask right byte */
#define L_MASK 0000377 /* mask left byte */
#define BLOCK_TYPE 0000377 /* block type */
#define OVER_BIT 0004000 /* suppress overwrite message */
#define RELOC_OP 0000017 /* relocation operation */
#define RELOC_OP_EX 0177760 /* extended relocation operation */
#define PAT_ALN 0000740 /* partition alinment power */
#define PAT_NREL 0000010 /* long or short NREL */
#define PAT_BASE 0000004 /* default or common base */
#define BIT_START 0177400 /* bit field start position */
#define BIT_LEN 0000377 /* bit field length */
#define PAT_ALN_S 5 /* partition alignment shift width */
#define PAT_BASE_S 2 /* partition base shift width */
#define RELOC_OP_S 4 /* extended relocation shift width */
#define BIT_FIELD_S 10 /* bit field start pos shift width */
#define FAS_TABLES_IN_REC \
(FAS_BUFF_LEN / sizeof(struct part_table))
#define FAS_ADDRS_IN_REC (FAS_BUFF_LEN / sizeof(int))
#ifdef DGUX
#define fasl_rpos() fseek(faslin, 0, 0)
#define fasl_skip(count) fseek(faslin, (count), 0)
#define FAS_HSIZE 8
#define SYMBOL_TABLE_MAX 24
struct sym_header {
short count;
short npage;
};
struct sym_entry {
int value;
short blength;
};
#endif
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